Prevent your computer sleeping with just a webpage
There's often times I want to prevent a computer/laptop/VM from sleeping and while, yes, there's various Caffeine/Amphetamine apps they're often overkill. Instead, this small (12Kb) page does the job and only needs a web browser. It's just a very simple usage of a web api normally used for things like video players: https://developer.mozilla.org/en-US/docs/Web/API/Screen_Wake...
Prevent your computer sleeping with just a webpage launched on April 22, 2022 with 252 votes, #66 of 2,974 launches that month and more than 95% of that year's launches. The site was still online in September 2026, 4 years on.
In plain words
This lightweight webpage (12KB) prevents computers, laptops, and virtual machines from sleeping without requiring dedicated applications. It uses the standard Screen Wake Lock web API, the same technology used by video players. Users who need simple sleep prevention can access it through any web browser instead of installing heavier caffeine or productivity apps.
written from the facts on this page · September 2026
From the sources
Prevent your device from sleeping with nosleep.page. Track your awake time and view statistics directly in your browser.
Click the central ring to start or stop keeping your screen awake. You can pick a preset duration or enter a custom time to prevent sleep for. Ensure this tab stays in the foreground (desktop) or unlocked (mobile) and that you grant the wake-lockfrom nosleep.page
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